Electric distribution.



J. L. GRBVELING.

ELECTRIC DISTRIBUTION.

APPLICATION FILED P mm, 1909.

Patented Nov. 28, 1911 7 anvem-ifoz qvi tneoae oz A UNITED STATES PATENT, curious JOHN L. CREVELING, OF NEW YORK, N. Y., ASSIG-NOR TO SAFET YlCAR HEATING AND LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

ELECTRIC DISTRIBUTION.

Specification of Letters Patent. Patented NOV. 28, 1911.

Application filed February 2, 1909. Serial No. 475,576.

To all whom it may concern:

Be it known that I, JOHN L. CRnvnLrNe, a resident of New York, in the county and State of New York, have invented a certain new and useful Improvement in Electric the generator may be, automatically governed according to predetermined conditions.

The drawing is a diagrammatic representation of a system of electrical distribution embodying my invention in a simple form.

Referring to the drawing, (1) represents a dynamo or generator provided with a field winding (2). One of the leads (8) is connected to the switch (4) which is preferably of the automatic variety, adapted to close the circuit when the voltage of the generator shall equal that of the storage battery and open the circuit when the generator voltage shall fall slightly below that of the battery. As the particular construction of this switch forms no part of my present invention, details further than a mere indication of its presence, are omitted. A good switch for this oflice is shown in my Patent No. 7 07,763. From the other side of this switch the main (5) leads to a low resistance device (6),. the function of which will hereinafter more plainly appear, and from the other side of which the lead (5) continues to one side of the storage battery (43) and lamps or translating devices (7),

the other side of which is in connection with the main (8) from which the lead (9) is carried to the other side of the generator (1).

The field coil (2) is connected with one by the screw (16) and tending to insert re- A. cord or other equivalent non-conducting member( 17) is adjustably attached to the lever (11) as by means of the adjustable connection (18), and has its other extremity attached to the, wire (19), normally held taut between the binding posts (20) which are carried by the levers (21) and (22), pivoted as at (23) and (24), and provided at their opposite extremities with binding posts (25) and (26) carrying the flexible wire (27) which is normally-held taut as shown in the drawing by the cord or other insulating member (28), suspended from the wire (29) which is held between the binding post (30), and the post (31) in a manner which will hereinafter more plainly appear. The wire (32) connects one side of the storage battery with one end of the wire (29), and wire (33) connects the other end of the wire (29) with the adj ustable resistance (34) which is in connectien with the other side of the battery (43). The wire (35) connects the lever (21) with the main on one side of the resistance (6), while the wire (36) connects the lever with some portion of theresistance (6) in such manner. that the amount of resistance shunted by the wires and may be varied. The variable resistance (37) is placed in the line (36) for the purpose of adjustment. p

The binding post (31), to which is attached one end of the wire (29), is carried by the lever (38), pivotedas at 39 to the lever (40). The adjustable spring (41) gether in such manner as to hold the wire (29) taut and take up any expansion of the same, until the adjusting screw (e12) shall arrest the motion of the lever (38), when further expansion of the wire (29) will cause a sag therein.

(44) represents a cord or other non-conan. adjustment therefor, which may be used if desired to normally assistin placing wire (19) under slight tension, for the purpose of adjustment.

The operation of my improvement in electrical distribution is substantially as follows: starting with the various instrumentalities in the positions shown in the drawing. If the armature (1) be revolved, the

ducting member, 15) a spring and (t6) sistan'ce (13) into the generator field circuit.

tendsto draw the levers (38) and 10) to generator.

field of the generator will build up in a well known manner and when the generator shall have reached a proper voltage the switch .(4) will close and current willv flow from of the current will divide at the resistance' (6) and pass through wire (36) and adjustable resistance (37) to the lever (22), where it will divide and flow back to lever 21) through wires (19) and (27), and from lever (21) it will return to the lead (5) through wire (35). The current pass ing through wires (19) and (27) will tend to heat and elongate the same so as to tend to cause the wire (19) to sag, as shown in the dotted line, and in this way allow the spring (15) to insert resistance (13) into the field circuit and cut down the output of the generator. By proper adjustment of the shunt (6) and resistance (37), springs (45) and (15), and by proper selection of the wires (19) and (27), a considerable movement may be given to the lever (11) upon rise in current above a given amount through the shunt (6), in such manner that the expansion of the wires (19) and (27), cooperating with the levers (21) and (22), may cause a considerable movement to the lever (11), in such manner as to hold the generator output practically constant throughout wide changes in speed of the same. A portion of the current will also flow from the main to the battery main (8) through the resistance (34), wire (33), wire (29), levers (38) and (40), and wire (32), and by proper adjustmentof the spring (41) and screw (42) and wire (29), the elongation of the wire (29) due to the normal voltage across the battery will be taken up by the spring (41), while, if the battery be raised above its voltage, the screw (42) will stop the motion of the lever (38) so that the same will not take up the slack in wire(29), whereupon the same will sag and allow the wire (27) to straighten and thus increase the sag in wire (19) through the instrumentality of levers (21) and (22) in such manner as to assist in increasing the movement of the lever (11) in such manner. as to cut down the output of the Further rise in current or voltage will increase the above named effects, while any decrease in curren or voltage will cause a change in the reverse thereof.

I do not wish to limit myself to any details of construction shown in the drawing which is a mere diagrammatic representation of a simpleform of apparatus embodying my invention, and it is obvious that great variation in the way of construction may be made without departing from the sprit of my invention, which is as set forth in the following claims, to wit 1. The C(dl'1l)il1{1ti()fl with a generator, :1 storage battery, a translation circuit, means for governing the output of the generator, a wire carrying a portion of the current generated, and means whereby expansion of said wire operates the generator governing means, of means responsive to voltage fluctuations for coiiperating with said wire in the operation of the generator governing means.

2. The combination with a dynamo or generator, a work circuit, means for governing the output of said generator, a divided circuit carrying a portion of the current generated, and means whereby expansion of the conductors forming said divided circuit varies the output of the generator, of means whereby changes in voltage upon said work circuit affect the generator governing means.

3. The combination with a generator, storage battery, translating devices, means for regulating the output of the generator comprehending a conductor carrying a portion of the current generated, and means whereby expansion of said conductor varies the output of the generator, of means for varying the effect of said expansion depending upon the voltage across a circuit supplied by said generator.

4. The combination with a dynamo or generator, a storage battery, a work circuit containing translating devices, and a regulator governing the output of the generator of a conducting expansion member in electrical connection with the work or translation circuit and means whereby the expan-' sion of said conducting member tends to assist in the regulation of the generator.

5. The combination with a generator, an automatic generator regulator and a work circuit, of a conducting member in electrical communication with the work circuit and means whereby the effect of current passing through said conducting member, so as to cause the same to expand, tends to alter the output; of the genmator.

(3. Means forrcgulaii, gtheoutput ofagenorator, comprising a plurality of conducting members the length of which determines the regulation of the generator, and means whereby current flowing through said conducting mcmbcrs and causing a sag therein operates the dynamo regulating moans combined with voltage operated means for modifying the cfiect of said regulating means.

7. The combination with a generator and its field circuit, means for regulating the such manner as to produce a combined eflect in regulating said field circuit of independeljl'tly o erated means formodifying the eifect. said expansion.

;' 8. The combination with a dynamo or 7 generator, a work circuit, and means governing the output of said generator, an expansion wirecarrying a portion of the current generated and operating said governing means, of an expansion wire, the length of which depends upon the voltage across the work circuit, and means whereby the expansion of the above named expansion wires cooperates to govern the output of the generator. I 2

9. The combination with a generator, a work circuit, means for regulating the output of the generator comprehending a conuctor carrying a portion of the current generated and means whereby expansion of said conductor governs thev output of the generator, of means for varyingthe effect of said expansion in governing the generator depending upon the voltage across a circuit supplied by said generator.

10. The combination with a generator, a work circuit, means for regulating the output of the generator comprehending a conductor carrying a portion of'the current gen erated and means whereby expansion of said conductor governs the output of the in the Patent Office.

Correction in Letters Patent No. 1,009,831.

[sun] generator, of means for varying the effect of said expansion in governing the generator depending upon the voltage across the work circuit.

11. The combination with a generator, a work circuit and a regulator governing the output of the generator, of a conducting expansion member in electrical connection with the work circuit and means whereby the expansion of said connecting members tends to'assist the generator regulator in the regulation of the generator.

12. The combination with a generator, an automatic generator regulator and a work circuit, of a conducting member in electrical communication with the Work circuit, means whereby the effect of current passing through said conducting member, causing the same to expand, tends to alter the output of the generator and means for governing the point of alteration of said output.

13. The combination with a generator, an

automatic generator regulator and a work circuit, of a conducting member in electrical communication with the work circuit, means whereby the effect of current passing through said conducting member, causing the same to expand, tends to alter the output of the generator and means for adjusting the effect of the expansion of said member.

JOHN L. OREVELING- Witnesses:

G. R. Jawii'rr, C. J. ,STOCKLEY;

It is hereby certified that in Letters Patent No. 1,009,831, granted November 28, 1911, upon the application of 'JohirL. Crevelilng, of New York, N. Y., for an improvement in Electric Distrib utionf an error appears in the printed specification requiring correction as follows; Page 3, line 44', for the words connecting members read conducting member, and that'the said Letters Patent should be read with this correction therein that the same may conform to the record of the case Signed and sealed this 16th day of January, A. D., 1912.

(J. C. BILLINGS, Acting Uommz'ssz'oner of Patents. 

